A vehicle intelligent security lock with biometric identification and security detection function

Abstract

The application discloses a vehicle intelligent security lock with biological identification and safety detection functions, which comprises a lock shell, a lock tongue, a transmission assembly, a mechanical driving assembly, a driving motor, a hook tongue, a linkage assembly, an electromagnet, a biological identification component and a safety detection component. A closed partition cavity is arranged in the lock shell, a lock groove is formed between an assembly part and a locking part, and the lock tongue is telescopically locked through worm gear transmission. The hook tongue is nested with a hook groove on the side wall of the lock hole to form an anti-prying structure, and the linkage assembly is controlled by the electromagnet to adjust the state of the hook tongue. The biological identification component supports fingerprint, face and password verification, and the safety detection component monitors the pressure of the lock tongue and the air tightness of the partition cavity in real time, and triggers an alarm when an abnormality occurs. The vehicle intelligent security lock is driven by mechanical and electrical dual modes, and can be mechanically unlocked in an emergency when power is cut off. The vehicle intelligent security lock has high safety, intelligent monitoring and convenient operation, and is suitable for scenarios such as motor homes, truck cabins and special vehicles, and effectively improves the anti-theft capability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of security lock, in particular to a vehicle intelligent security lock with biological recognition and safety detection functions. BACKGROUND

[0002] With the continuous growth of the number of cars, the security problem of vehicles and vehicle-mounted property is increasingly prominent, especially the house car door, truck compartment door, and easily detachable parts such as the external hanging spare tire, which often become the target of theft by criminals. The traditional mechanical lock has simple structure, weak anti-prying ability, and lacks real-time monitoring function. Once it is damaged, the owner is difficult to detect in time. In addition, the traditional lock relies on physical keys to open, and there is a risk of key loss, duplication or brute force cracking, and the security and convenience cannot meet the security needs of modern vehicles.

[0003] In recent years, biological recognition technology (such as fingerprint, face recognition) and electronic safety detection technology have been gradually applied to the field of locks. Some intelligent lock products integrate electronic drive, sensor and other modules to realize keyless opening and state monitoring function. However, the existing vehicle intelligent lock still has the following technical defects:

[0004] 1. Insufficient structural reliability: Most electronic locks lack self-locking function in the transmission mechanism, and are prone to failure under power failure or external force impact, and the lock tongue anti-prying design is weak, which is difficult to resist violent disassembly.

[0005] 2. Single safety monitoring: Most existing locks only monitor the lock tongue position or electrical state, and cannot comprehensively judge whether the lock body has been physically damaged (such as cutting, drilling), and lack on-site alarm mechanism.

[0006] 3. Inconvenient emergency unlocking: When the battery of the electronic lock is depleted or the system fails, the mechanical backup unlocking structure is complex, the operation is cumbersome, and even the lock body needs to be damaged to open it in emergency.

[0007] 4. Redundant space layout: The integration of multiple components leads to an oversized lock body, which is difficult to adapt to the narrow installation space of vehicles, and the transmission components are prone to interfere with the movement of the lock tongue, affecting long-term stability.

[0008] In view of the above problems, it is urgent to develop a vehicle intelligent security lock integrating biological recognition, real-time safety monitoring, and mechanical and electronic dual-mode driving, which can ensure high security while considering compactness, reliability and emergency operation convenience. SUMMARY

[0009] In view of the above-mentioned shortcomings of the existing technology, the purpose of this invention is to provide a smart security lock for vehicles with biometric identification and security detection functions. It is significantly superior to traditional vehicle locks in terms of security, reliability, convenience and intelligence. It can be widely used in RVs, logistics transportation, special vehicles and other fields, effectively improving the anti-theft capabilities of vehicles and their contents.

[0010] The technical solution adopted by the present invention to achieve the above objectives is: a vehicle smart security lock with biometric identification and security detection functions, comprising:

[0011] The lock case has a sealed cavity. The outer side of the lock case has an outwardly protruding assembly part and a locking part. A lock groove is provided between the assembly part and the locking part. An assembly cavity is provided on the inner side of the assembly part. A lock hole is provided in the locking part and is arranged towards the lock groove. A hook groove is provided on the side wall of the lock hole.

[0012] The lock tongue and transmission assembly are provided. The lock tongue is slidably installed in the assembly part and passes through the lock groove to be inserted into the lock hole. The inner end of the lock tongue is equipped with a transmission rack. The transmission assembly includes a transmission gear and a matching combination of a worm gear and a worm. The worm gear and the transmission gear are dynamically connected. The transmission gear and the rack are meshed together.

[0013] The mechanical drive assembly includes a lock body and a lock cylinder assembled into the lock body. The lock body is assembled to the outer side of the assembly part and extends into the assembly cavity. The lock cylinder and the drive motor are both linked together with the worm gear.

[0014] The lock includes a hook tongue, a linkage assembly, and an electromagnet. The hook tongue is assembled to the outer end of the lock tongue and can be nested and locked with the hook groove. The linkage assembly is assembled into the lock tongue. The hook tongue and the mechanical drive assembly are linked with the linkage assembly. The electromagnet is assembled into the assembly cavity and controls the movement of the linkage assembly by controlling its on and off states.

[0015] The biometric identification component and the security detection component are provided. The biometric identification component is assembled to the outer side of the assembly part, and the security detection component is used to detect the pressure of the locking tongue and the airtightness of the cavity.

[0016] Based on the above technical solutions, in order to ensure that the biometric identification component can be effectively installed on the outer side of the assembly part and to realize the verification of the biometric information of the person unlocking the door, while providing the password unlocking function, the following technical solutions are provided.

[0017] The outer side of the assembly part is provided with assembly holes A, B and C that are in communication with the assembly cavity. The biometric component includes a camera and a fingerprint sensor respectively assembled into the assembly holes A and B, and a control panel is assembled into the assembly hole C.

[0018] Based on the above technical solutions, in order to ensure that the safety detection component can effectively detect the locking tongue pressure and the airtightness of the cavity, and provide on-site alarm function, the following technical solutions are provided.

[0019] The outer side of the assembly part is provided with an assembly hole D that communicates with the assembly cavity. The inner end of the lock hole is provided with an assembly groove. The safety detection component includes a pressure sensor, a pneumatic sensor, and a buzzer. The pressure sensor is assembled into the assembly groove and abuts against the end of the lock tongue that extends into the lock hole. The pneumatic sensor is assembled into the assembly cavity and connected to the partition cavity. The buzzer is assembled into the assembly hole D.

[0020] Based on the above technical solutions, in order to ensure that the locking tongue can slide telescopically in the assembly part and avoid spatial motion interference with the transmission components, and to ensure that the hook tongue can also retract to the assembly part when the locking tongue is in the retracted state, the following technical solutions are provided.

[0021] The locking tongue includes two sets arranged side by side. The assembly part has a guide through hole that is slidably inserted with the locking tongue. The outer end of the guide through hole has a receiving groove that fits into the hook tongue.

[0022] The transmission gears include two sets coaxially distributed, and the transmission gears are arranged between the two sets of locking tongues. Each set of locking tongues has two sets of parallel distribution grooves for accommodating the transmission gears. The transmission rack is fixedly connected in one set of the grooves. The locking tongues also have strip-shaped through grooves. The transmission shaft arranged in the strip-shaped through groove is fixedly connected at the axis of the worm.

[0023] Based on the above technical solutions, in order to ensure that the transmission components can be stably installed in the assembly cavity and to achieve effective control over the extension and retraction posture of the locking tongue, the following technical solutions are provided.

[0024] The worm gear is arranged between two sets of locking tongues. A drive bevel gear A is fixedly connected to the shaft of the worm gear. A transmission bevel gear A that meshes with the drive bevel gear A is fixedly connected to the shaft of each of the two sets of transmission gears. The two sets of transmission bevel gears A are arranged symmetrically.

[0025] Based on the above technical solutions, the following technical solutions are provided to ensure that the drive motor can achieve linkage with the worm gear.

[0026] A drive bevel gear B is fixedly connected to the output shaft of the drive motor, and a transmission bevel gear B is fixedly connected to the transmission shaft. The transmission bevel gear B and the drive bevel gear B are engaged.

[0027] Based on the above technical solutions, in order to ensure that the mechanical drive components can be effectively assembled in the assembly section and to achieve effective drive of the worm gear, the following technical solutions are provided.

[0028] The outer side of the assembly part is provided with a telescopic through hole that communicates with the assembly cavity. The lock body is assembled into the telescopic through hole in a relatively sliding manner. The lock cylinder has a spline shaft at its axis. A spur gear A is slidably inserted into the spline shaft and rotatably installed in the assembly cavity. A spur gear B that meshes with the spur gear A is fixedly connected to the transmission shaft.

[0029] Based on the above technical solutions, in order to ensure that the hook tongue can be assembled in a telescopic sliding posture in the lock tongue, and to ensure that the linkage component is assembled in the lock tongue and realizes the adjustment of the telescopic posture of the hook tongue, the following technical solutions are provided.

[0030] The latch is provided with a radial guide groove and an axial guide groove. Two sets of symmetrically arranged hooks are slidably installed in the radial guide groove. The two sets of hooks are connected by a tension spring. The outer side of the hook is provided with an outer wedge surface that mates with the hook groove, and the inner side of the hook is provided with an inner wedge surface.

[0031] The linkage assembly includes a drive rod, a drive key, a connecting plate, and an action plate. The drive rod is slidably installed in the axial guide groove. A support spring that abuts against the axial guide groove is fitted to the inner end of the drive rod. The drive key is fixed to the outer end of the drive rod, and a drive wedge surface that abuts against the inner wedge surface is provided on the side wall of the drive key. The drive rods arranged in the two sets of lock tongues are fixedly connected by the connecting plate. A permanent magnet is fixedly attached to the connecting plate. The electromagnet is fixedly installed in the assembly cavity and is arranged coaxially with the permanent magnet. The action plate is also fixedly attached to one set of drive rods, and the action plate interacts with the lock body.

[0032] Based on the above technical solutions, the following technical solution is provided to enable the extension and retraction adjustment of the hook tongue by triggering the operation of the linkage component through the lifting and lowering movement of the lock body.

[0033] The mechanical drive assembly also includes a guide rod, a return spring, and a connecting seat. The guide rod is fixedly installed in the assembly cavity. The connecting seat is slidably installed on the guide rod and fixedly connected to the lock body. The return spring is assembled on the guide rod and connected to the connecting seat. An action buckle arranged above the action plate is fixedly connected to the connecting seat. An action groove that cooperates with the action buckle is provided on the connecting plate.

[0034] The beneficial effects of this invention are:

[0035] 1. Multiple security protections and strong anti-pry and anti-damage capabilities: It adopts a double-latch and hook-latch linkage structure. After the latch extends into the lock hole, the hook automatically pops out and embeds into the hook groove to form a double lock, effectively preventing external prying. The worm gear transmission mechanism has a self-locking characteristic. After locking, it cannot be driven in reverse, ensuring that the latch remains in a stable locked state when there is no authorized operation. The cavity airtightness monitoring design means that the cavity inside the lock shell is evacuated or filled with inert gas. Once damaged (such as drilling or cutting), the air pressure sensor will immediately trigger an alarm, improving the active anti-theft capability.

[0036] 2. Intelligent biometric identification and password unlocking, balancing security and convenience, integrates three authentication methods: fingerprint recognition, facial recognition, and password input. Users can verify their identity through any of these methods, avoiding the risks of losing or copying traditional keys.

[0037] 3. Dual-mode mechanical and electronic drive, emergency unlocking is still possible even in the event of a power outage. Under normal conditions, electric unlocking is achieved by the drive motor and electromagnet, which is fast and easy to operate. When the battery is out of power or the electronic system fails, the lock body can be pressed with a mechanical key, which will retract the hook and drive the worm gear to achieve pure mechanical emergency unlocking and avoid the risk of locking up.

[0038] 4. Real-time security monitoring and proactive anti-theft warning: The pressure sensor monitors the clamping force of the lock tongue in real time, and the air pressure sensor continuously monitors the pressure in the cavity. Once an abnormality is detected, an audible and visual alarm is immediately triggered and the owner is notified.

[0039] 5. Compact structural design avoids motion interference. Utilizing a parallel double-tongue layout with synchronous transmission via bevel gears, it achieves synchronized extension and retraction of two sets of tongues within a limited space, increasing locking force while reducing volume. The clearance groove and strip-shaped through-slot design ensure no interference between the transmission gears, worm gear, and other components and the tongue movement, guaranteeing long-term stable and reliable operation.

[0040] 6. It has a wide range of applications and flexible installation. It is suitable for various vehicle-mounted scenarios such as truck doors, external spare tires, and toolboxes. It adopts an internal installation and fixing method to prevent external forceful disassembly. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of the present invention;

[0042] Figure 2 A structural diagram of the matching fasteners;

[0043] Figure 3 This is a structural schematic diagram of a key component of the lock case;

[0044] Figure 4 for Figure 3 A structural diagram from another perspective;

[0045] Figure 5This is a schematic diagram of the lock case in a cross-section along the so-called axis of the bolt.

[0046] Figure 6 This is a schematic diagram of the structure of the present invention after the lock shell is removed;

[0047] Figure 7 for Figure 6 A structural diagram from another perspective;

[0048] Figure 8 A schematic diagram of the structure for the combination of drive motor, mechanical drive components and transmission components;

[0049] Figure 9 This is a structural diagram of the worm gear and transmission gear in their disassembled state.

[0050] Figure 10 This is a schematic diagram of the latch's structure in cross-section.

[0051] Figure 11 for Figure 10 A structural diagram from another perspective;

[0052] Figure 12 A schematic diagram showing the structure of the hook tongue and linkage assembly installed in the locking tongue;

[0053] Figure 13 This is a structural diagram of the linkage component.

[0054] In the diagram: 1 Lock housing, 11 Cavity, 12 Assembly part, 121 Assembly cavity, 122 Assembly hole A, 123 Assembly hole B, 124 Assembly hole C, 125 Assembly hole D, 126 Guide through hole, 127 Receiving groove, 128 Telescopic through hole, 13 Locking part, 131 Lock hole, 132 Hook groove, 133 Assembly groove, 14 Lock groove, 15 Mounting pad, 21 Lock tongue, 211 Transmission rack, 212 Relief groove, 213 Strip through groove, 214 Arc groove, 215 Radial guide groove, 216 Axial guide groove, 217 Connecting through groove, 221 Transmission gear, 222 Worm gear, 223 Worm, 224 Transmission shaft, 225 Drive bevel gear A, 226 Transmission bevel gear A, 227 Transmission bevel gear; B, 228 Spur gear; B, 31 Lock body; 32 Lock cylinder; 321 Splined shaft; 322 Spur gear A; 33 Guide rod; 34 Return spring; 35 Connecting seat; 36 Action buckle; 4 Drive motor; 41 Drive bevel gear B; 51 Hook tongue; 511 Tension spring; 512 Outer wedge surface; 513 Inner wedge surface; 521 Drive rod; 522 Drive key; 523 Connecting plate; 524 Action plate; 525 Support spring; 526 Drive wedge surface; 527 Permanent magnet; 528 Action inclined groove; 53 Electromagnet; 61 Camera; 62 Fingerprint sensor; 63 Control panel; 71 Pressure sensor; 72 Buzzer; 8 Fastener; 81 Buckle hole. Detailed Implementation

[0055] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0056] Example 1

[0057] Please see Figures 1-7 A smart security lock for vehicles with biometric identification and security detection functions includes:

[0058] The lock housing 1 has a sealed cavity 11. The outer side of the lock housing 1 has an outwardly protruding assembly part 12 and a locking part 13. A lock groove 14 is provided between the assembly part 12 and the locking part 13. An assembly cavity 121 is provided inside the assembly part 12. A lock hole 131 is provided in the locking part 13 and is arranged toward the lock groove 14. A hook groove 132 is provided on the side wall of the lock hole 131.

[0059] The locking tongue 21 and the transmission assembly are slidably installed in the assembly part 12 and inserted into the lock hole 131 through the lock groove 14. The inner end of the locking tongue 21 is equipped with a transmission rack 211. The transmission assembly includes a transmission gear 221 and a matching combination of worm gear 222 and worm 223. The worm gear 222 and the transmission gear 221 are dynamically connected, and the transmission gear 221 and the rack are meshed.

[0060] The mechanical drive assembly includes a lock body 31 and a lock cylinder 32 assembled into the lock body 31. The lock body 31 is assembled to the outer side of the assembly part 12 and extends into the assembly cavity 121. The lock cylinder 32 and the drive motor 4 are both linked together with the worm gear 223.

[0061] The hook tongue 51, the linkage component, and the electromagnet 53 are assembled to the outer end of the locking tongue 21 and can be nested and locked with the hook groove 132. The linkage component is assembled into the locking tongue 21. The hook tongue 51 and the mechanical drive component are linked with the linkage component. The electromagnet 53 is assembled into the assembly cavity 121 and controls the movement of the linkage component by the on and off state of the power.

[0062] The biometric identification component is assembled to the outer side of the assembly part 12, and the security detection component is used to detect the pressure of the locking tongue 21 and the airtightness of the cavity 11.

[0063] This vehicle smart security lock can be used to lock truck cargo doors or externally mounted spare tires. It is installed to a specific part by assembling from the inside, avoiding disassembly from the outside. Therefore, a mounting pad 15 is fixed to the inner side of the lock housing 1, and it can be assembled to a specific part of the car by bolt fixing.

[0064] The lock housing 1, lock tongue 21, hook tongue 51 and other components are all made of high-hardness metal alloy. By inserting the matching fastener 8 on the vehicle into the lock groove 14, and the fastener 8 is provided with a buckle hole 81, the lock tongue 21 is controlled to extend from the assembly part 12 and pass through the buckle hole 81 into the lock hole 131, thereby realizing the locking and fixing of the car door or spare tire.

[0065] When the bolt 21 extends into the lock hole 131 and is in a locked position, the safety detection component can monitor the pressure of the bolt 21 in real time to ensure that the bolt 21 remains in a locked position. When the exterior of the security lock is damaged, the cavity 11 will inevitably be damaged, affecting its airtightness. During the assembly stage, the cavity 11 is evacuated or filled with inert gas at a specific pressure. The safety detection component monitors the pressure of the cavity 11 in real time to determine whether the lock shell 1 has been maliciously damaged.

[0066] The assembly part 12 ensures the effective installation and operation of the locking tongue 21, transmission assembly, mechanical drive assembly, drive motor 4, electromagnet 53, biometric component, and security detection component, while the locking part 13 is mainly used to accommodate the locking tongue 21 and hook tongue 51 and to effectively fix the fastener 8.

[0067] When locked, the hook tongue 51 mounted on the lock tongue 21 is driven by the linkage component, which can extend and embed into the hook groove 132 to provide anti-pry protection for the lock tongue 21 and improve the security performance of the security lock.

[0068] The drive motor 4, electromagnet 53, biometric identification component, and security detection component all need to operate under power. Therefore, a battery is installed in the lock housing 1 to provide stable power. The biometric identification component can verify the biometric information of the person unlocking the lock. When the verification is successful, the electromagnet 53 can be connected and the linkage component can be driven to operate, so that the hook tongue 51 is in the unlocked state. Then the drive motor 4 works, and through the transmission component, it drives the lock tongue 21 to retract to the assembly part 12 to realize the unlocking.

[0069] When the battery is low on power or the drive motor 4, electromagnet 53, or biometric identification component malfunctions, the lock can be unlocked through the mechanical drive component. The lock cylinder 32 is operated by the matching key. First, the linkage component is controlled to drive the hook tongue 51 to retract. Then, the transmission component is controlled to drive the lock tongue 21 to retract and unlock.

[0070] Example 2

[0071] Please see Figure 1 , Figures 3-7 To ensure that the biometric identification component can be effectively installed on the outer side of the assembly part 12 and to verify the biometric information of the person unlocking the door, while also providing a password unlocking function, the following technical solution is provided.

[0072] The outer side of the assembly part 12 is provided with assembly holes A122, B123 and C124 that are connected to the assembly cavity 121. The biometric components include a camera 61 and a fingerprint sensor 62 respectively assembled into the assembly holes A122 and B123. The control panel 63 is assembled into the assembly hole C124.

[0073] The above-mentioned mounting holes ensure the effective installation of the camera 61, fingerprint sensor 62, and control panel 63. The camera 61 and fingerprint sensor 62 collect the facial and fingerprint information of the person unlocking the door, respectively, and transmit the collected biometric information to the processor installed in the assembly cavity 121. The processor verifies the biometric information, and after successful verification, controls the drive motor 4, electromagnet 53, and other components to operate and realize the unlocking operation.

[0074] The control panel 63 is also connected to the processor, and can be unlocked with a password, and can also be used to register facial information, fingerprint information and modify passwords.

[0075] To ensure that the safety detection component can effectively detect the pressure of the locking tongue 21 and the airtightness of the cavity 11, and provide on-site alarm function, the following technical solution is provided.

[0076] The outer side of the assembly part 12 is provided with an assembly hole D125 that communicates with the assembly cavity 121. The inner end of the lock hole 131 is provided with an assembly groove 133. The safety detection components include a pressure sensor 71, a pneumatic sensor, and a buzzer 72. The pressure sensor 71 is assembled into the assembly groove 133 and abuts against the end of the lock tongue 21 that extends into the lock hole 131. The pneumatic sensor is assembled into the assembly cavity 121 and connected to the partition 11. The buzzer 72 is assembled into the assembly hole D125.

[0077] The mounting hole D125 ensures that the buzzer 72 is effectively installed on the front side of the lock case 1. When the lock tongue 21 is in the locked position, it can apply a specific pressure value to the pressure sensor 71, which is detected by the pressure sensor 71 and transmitted to the processor for verification. Similarly, the air pressure sensor detects the air pressure in the cavity 11 and transmits it to the processor for verification. When the detected value verified by the processor exceeds the preset alarm threshold, the buzzer 72 is controlled to work and emit an alarm sound.

[0078] The processor can also transmit alarm signals to the car owner's mobile device (smartphone) via wireless signal.

[0079] Example 3

[0080] Please see Figures 5-10To ensure that the locking tongue 21 can slide telescopically within the assembly part 12 and to avoid spatial motion interference with the transmission components, the following technical solution is provided to ensure that the hook tongue 51 also retracts to the assembly part 12 when the locking tongue 21 is in the retracted state.

[0081] The locking tongue 21 includes two sets arranged side by side. The assembly part 12 is provided with a guide through hole 126 that is slidably inserted with the locking tongue 21. The outer end of the guide through hole 126 is provided with a receiving groove 127 that is nested and matched with the hook tongue 51.

[0082] The transmission gear 221 includes two sets coaxially distributed, and the transmission gear 221 is arranged between the two sets of locking tongues 21. Each set of locking tongues 21 has two sets of parallel distributed relief grooves 212 for accommodating the transmission gear 221. A transmission rack 211 is fixedly connected in one set of relief grooves 212. A strip-shaped through groove 213 is also provided on the locking tongue 21. A transmission shaft 224 arranged in the strip-shaped through groove 213 is fixedly connected at the shaft center of the worm 223.

[0083] The locking tongue 21 is configured as two sets arranged side by side. The two sets of locking tongue 21 are driven by the transmission component to move synchronously and extend and retract, and cooperate with the lock hole 131 in the locking part 13 to lock together, so as to further improve the security performance of the security lock.

[0084] The guide hole 126 enables the lock tongue 21 to slide and extend stably along the axial direction, while the accommodating groove 127 ensures that the hook tongue 51 on the lock tongue 21 can be accommodated when it is retracted, thereby ensuring the normal opening and closing of the security lock.

[0085] The placement of the clearance groove 212 can prevent the transmission gear 221 from interfering with the spatial movement of another set of non-associated locking tongues 21, while the placement of the transmission shaft 224 can ensure that the worm gear 223 is stably installed in the assembly cavity 121 in a relatively rotating posture. During the extension and retraction of the locking tongue 21, the transmission shaft 224 achieves relative displacement in the strip through groove 213, ensuring a compact layout of the transmission components and the locking tongue 21 while avoiding spatial movement interference.

[0086] To ensure that the transmission components can be stably installed in the assembly cavity 121 and to achieve effective control over the extension and retraction posture of the locking tongue 21, the following technical solution is provided.

[0087] The worm gear 222 is arranged between the two sets of locking tongues 21. A drive bevel gear A225 is fixedly connected to the shaft of the worm gear 222. A transmission bevel gear A226 that meshes with the drive bevel gear A225 is fixedly connected to the shaft of each of the two sets of transmission gears 221. The two sets of transmission bevel gears A226 are arranged symmetrically.

[0088] An axially distributed arc-shaped groove 214 is provided on the inner side of the locking tongue 21. The worm gear 222 is arranged between the arc-shaped grooves 214 of the two sets of locking tongues 21. During the extension and retraction of the locking tongue 21, spatial motion interference with the worm gear 222 can be avoided. When the worm 223 drives the worm gear 222 and the drive bevel gear A225 to rotate, it can drive the two sets of transmission bevel gears A226 and the corresponding transmission gears 221 to operate stably. Since the two sets of transmission bevel gears A226 maintain a symmetrical layout to achieve rotation around opposite directions, the locking tongues 21 arranged on both sides of the transmission gear 221 are driven to extend and retract synchronously.

[0089] Example 4

[0090] Please see Figures 5-8 Based on the above technical solutions, in order to ensure that the drive motor 4 can achieve linkage with the worm gear 223, the following technical solutions are provided.

[0091] A drive bevel gear B41 is fixedly connected to the output shaft of the drive motor 4, and a transmission bevel gear B227 is fixedly connected to the transmission shaft 224. The transmission bevel gear B227 and the drive bevel gear B41 are engaged.

[0092] When the drive motor 4 is working, it can drive the drive bevel gear B41 to operate stably, thereby driving the transmission bevel gear B227, transmission shaft 224, and worm gear 223 to operate stably.

[0093] Because the combination of worm 223 and worm wheel 222 has the characteristics of speed reduction and torque amplification and one-way self-locking, the torque is amplified at the end of worm wheel 222 to drive the transmission gear 221 and locking tongue 21 to operate stably. When the locking tongue 21 is in the locked or unlocked position, worm 223 is in a stationary state, which can apply a self-locking effect to worm wheel 222 to limit the ineffective rotation of worm wheel 222, thereby keeping the locking tongue 21 in the locked state as well.

[0094] Based on the above technical solutions, in order to ensure that the mechanical drive components can be effectively assembled in the assembly part 12 and to achieve effective driving of the worm gear 223, the following technical solutions are provided.

[0095] The outer side of the assembly part 12 is provided with a telescopic through hole 128 that communicates with the assembly cavity 121. The lock body 31 is assembled into the telescopic through hole 128 in a relatively sliding manner. The lock cylinder 32 has a spline shaft 321 at its axis. A spur gear A322 is slidably inserted into the spline shaft 321 and rotatably installed in the assembly cavity 121. A spur gear B228 that meshes with the spur gear A322 is fixedly connected to the transmission shaft 224.

[0096] The telescopic through hole 128 ensures that the lock body 31 is stably assembled in the assembly part 12 and moves telescopically along its own axis. During the telescopic movement of the lock body 31 and the lock cylinder 32, the spline shaft 321 is always connected to the spur gear A322. When the lock cylinder 32 is turned by the key, the spline shaft 321 can drive the spur gear A322 to rotate synchronously, and then transmit the power to the worm gear 223 through the spur gear B228 and the transmission shaft 224 to drive the worm gear 223 to rotate stably and realize the unlocking and locking operations.

[0097] Example 5

[0098] Please see Figures 11-13 To ensure that the hook tongue 51 can be assembled in the locking tongue 21 in a telescopic sliding posture, and to ensure that the linkage component is assembled in the locking tongue 21 and realizes the adjustment of the telescopic posture of the hook tongue 51, the following technical solution is provided.

[0099] The locking tongue 21 has a radial guide groove 215 and an axial guide groove 216. Two sets of symmetrically arranged hook tongues 51 are slidably installed in the radial guide groove 215. The two sets of hook tongues 51 are connected by a tension spring 511. The outer side of the hook tongue 51 is provided with an outer wedge surface 512 that cooperates with the hook groove 132, and the inner side of the hook tongue 51 is provided with an inner wedge surface 513.

[0100] The linkage assembly includes a drive rod 521, a drive key 522, a connecting plate 523, and an action plate 524. The drive rod 521 is slidably installed in the axial guide groove 216. The inner end of the drive rod 521 is fitted with a support spring 525 that abuts against the axial guide groove 216. The drive key 522 is fixedly connected to the outer end of the drive rod 521, and the side wall of the drive key 522 is provided with a drive wedge surface 526 that abuts against the inner wedge surface 513. The drive rods 521 arranged in the two sets of lock tongues 21 are fixedly connected by the connecting plate 523. A permanent magnet 527 is fixedly connected to the connecting plate 523. An electromagnet 53 is fixedly installed in the assembly cavity 121 and is coaxially arranged with the permanent magnet 527. An action plate 524 is also fixedly connected to one set of drive rods 521. The action plate 524 is associated with the lock body 31.

[0101] The radial guide groove 215 ensures that the hook tongue 51 slides radially in the locking tongue 21, while the axial guide groove 216 ensures that the drive rod 521 slides axially in the locking tongue 21. The tension spring 511 ensures that the two sets of hook tongues 51 tend to retract inward. The outer wedge surface 512 of the hook tongue 51 interacts with the hook groove 132 to position the locking tongue 21 in the lock hole 131, preventing the locking tongue 21 from being pried out by external force. The drive key 522 moves synchronously with the drive rod 521. Through the interaction of its drive wedge surface 526 and inner wedge surface 513, it can control the extension and retraction of the hook tongue 51. The support spring 525 can apply a tendency to move towards the end where the hook tongue 51 is located to the drive rod 521 and the drive key 522, thereby pushing the hook tongue 51 out and locking it with the hook groove 132.

[0102] The connecting plate 523 enables the synchronous movement of the two sets of drive rods 521. A connecting slot 217 is provided on the locking tongue 21 to achieve a fixed connection between the drive rod 521 and the outer connecting plate 523 and the action plate 524.

[0103] When electromagnet 53 is not energized, permanent magnet 527 attracts the iron core of electromagnet 53, thereby driving connecting plate 523 and drive rod 521 to move towards the end where hook tongue 51 is located. When electromagnet 53 is energized, it generates a magnetic field that can exert a repulsive force on permanent magnet 527, thereby pushing permanent magnet 527, connecting plate 523, and drive rod 521 towards the end where support spring 525 is located, so that the two sets of hook tongues 51 retract into the axial guide groove 216 under the action of tension spring 511, and cancel the interaction with hook groove 132, so that locking tongue 21 can retract normally.

[0104] To enable the linkage component to operate through the lifting and lowering movement of the lock body 31, thereby realizing the extension and retraction adjustment of the hook tongue 51, the following technical solution is provided.

[0105] The mechanical drive assembly also includes a guide rod 33, a return spring 34, and a connecting seat 35. The guide rod 33 is fixedly installed in the assembly cavity 121. The connecting seat 35 is slidably installed on the guide rod 33 and fixedly connected to the lock body 31. The return spring 34 is assembled on the guide rod 33 and connected to the connecting seat 35. An action buckle 36 arranged above the action plate 524 is fixedly connected to the connecting seat 35. An action groove 528 that cooperates with the action buckle 36 is opened on the connecting plate 523.

[0106] The cooperation of the guide rod 33, the telescopic spring, and the connecting seat 35 enables the lock body 31 to retract by pressing with a key and to spring back to its original position when the action is canceled.

[0107] When the locking and unlocking operations are controlled by electric drive, since the action buckle 36 is located above the action plate 524 and there is no spatial movement interference, the action plate 524 is not affected by the mechanical drive components of the extended posture and can be driven by the electromagnet 53 to realize the retraction adjustment of the hook tongue 51.

[0108] When unlocking via the mechanical drive assembly, the lock body 31 is retracted as a whole by pressing the key. The action buckle 36 moves synchronously to cooperate with the action groove 528, thereby driving the action plate 524 and the drive rod 521 to move towards the end where the support spring 525 is located, thereby realizing the retraction adjustment of the hook tongue 51.

[0109] It should also be noted that during the electrically driven locking phase, as the latch 21 extends into the lock hole 131 from the outside, the hook tongue 51 is acted upon by the inner wall of the lock hole 131, thereby overcoming the attraction between the permanent magnet 527 and the iron core, as well as the resistance of the support spring 525, and automatically retracts. Once the latch 21 is fully in place, the hook tongue 51 is no longer acted upon by the inner wall of the lock hole 131 and pops out freely, ultimately engaging with the hook groove 132. During the electrically driven unlocking process, the electromagnet 53 is energized, causing the hook tongue 51 to retract. Because the electromagnet 53 and the permanent magnet 527 have a certain distance between them, it ensures that the hook tongue 51 remains in a retracted state within a certain range of motion of the latch 21. When the hook tongue 51 interacts with the inner wall of the lock hole 131, the inner wall of the lock hole 131 applies a force to the hook tongue 51. At this time, the interaction force between the electromagnet 53 and the permanent magnet 527 is canceled, yet the hook tongue 51 still retracts.

[0110] When the mechanical drive component controls the locking, the locking operation can be achieved without pressing the lock body 31 to retract due to the action of the hook tongue 51 and the inner wall of the lock hole 131. When unlocking, the hook tongue 51 is retracted by pressing the lock body 31 and the hook tongue 51 is retracted under the association of the action buckle 36 and the action groove 528. The retraction of the hook tongue 51 has a certain redundancy, which can ensure that the hook tongue 51 never extends out of the radial guide groove 215 before it acts on the inner wall of the lock hole 131.

[0111] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0112] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vehicle smart security lock with biometric identification and security detection functions, characterized in that, include: A lock housing (1) has a sealed cavity (11) in the lock housing (1). The outer side of the lock housing (1) has an outwardly protruding assembly part (12) and a locking part (13). A lock groove (14) is provided between the assembly part (12) and the locking part (13). An assembly cavity (121) is provided inside the assembly part (12). A lock hole (131) is provided in the locking part (13) and faces the lock groove (14). A hook groove (132) is provided on the side wall of the lock hole (131). The lock tongue (21) and the transmission assembly are slidably installed in the assembly part (12) and inserted into the lock hole (131) through the lock groove (14). The inner end of the lock tongue (21) is equipped with a transmission rack (211). The transmission assembly includes a transmission gear (221) and a matching combination of a worm gear (222) and a worm (223). The worm gear (222) is dynamically connected to the transmission gear (221), and the transmission gear (221) is meshed with the rack. Mechanical drive assembly and drive motor (4), the mechanical drive assembly includes lock body (31) and lock cylinder (32) assembled in lock body (31), the lock body (31) is assembled to the outer side of the assembly part (12) and extends into the assembly cavity (121), the lock cylinder (32) and drive motor (4) are both linked together with worm gear (223); The hook tongue (51), the linkage component, and the electromagnet (53) are assembled to the outer end of the lock tongue (21) and can be nested and locked with the hook groove (132). The linkage component is assembled into the lock tongue (21). The hook tongue (51) and the mechanical drive component are linked with the linkage component. The electromagnet (53) is assembled into the assembly cavity (121) and controls the movement of the linkage component by the on and off state of the power supply. Biometric identification component and security detection component, wherein the biometric identification component is assembled to the outer side of the assembly part (12), and the security detection component is used to detect the pressure of the locking tongue (21) and the airtightness of the cavity (11).

2. The vehicle smart security lock with biometric identification and security detection functions according to claim 1, characterized in that: The outer side of the assembly part (12) is provided with assembly holes A (122), B (123) and C (124) that are in communication with the assembly cavity (121). The biometric component includes a camera (61) and a fingerprint sensor (62) respectively assembled into the assembly holes A (122) and B (123). The control panel (63) is assembled into the assembly hole C (124).

3. A vehicle smart security lock with biometric identification and security detection functions according to claim 1, characterized in that: The outer side of the assembly part (12) is provided with an assembly hole D (125) that communicates with the assembly cavity (121). The inner end of the lock hole (131) is provided with an assembly groove (133). The safety detection component includes a pressure sensor (71), a pneumatic sensor, and a buzzer (72). The pressure sensor (71) is assembled into the assembly groove (133) and abuts against the end of the lock tongue (21) that extends into the lock hole (131). The pneumatic sensor is assembled into the assembly cavity (121) and connected to the partition cavity (11). The buzzer (72) is assembled into the assembly hole D (125).

4. A vehicle smart security lock with biometric identification and security detection functions according to claim 1, characterized in that: The locking tongue (21) includes two sets arranged side by side. The assembly part (12) is provided with a guide through hole (126) that is slidably inserted with the locking tongue (21). The outer end of the guide through hole (126) is provided with a receiving groove (127) that is nested and matched with the hook tongue (51). The transmission gear (221) includes two sets coaxially distributed, and the transmission gear (221) is arranged between the two sets of locking tongues (21). Each set of locking tongues (21) has two sets of parallel distributed relief grooves (212) for accommodating the transmission gear (221). The transmission rack (211) is fixedly connected in one set of relief grooves (212). The locking tongue (21) also has a strip-shaped through groove (213). The transmission shaft (224) arranged in the strip-shaped through groove (213) is fixedly connected at the axis of the worm (223).

5. A vehicle smart security lock with biometric identification and security detection functions according to claim 4, characterized in that: The worm gear (222) is arranged between two sets of locking tongues (21). A drive bevel gear A (225) is fixedly connected to the shaft of the worm gear (222). A transmission bevel gear A (226) that meshes with the drive bevel gear A (225) is fixedly connected to the shaft of each of the two sets of transmission gears (221). The two sets of transmission bevel gears A (226) are arranged symmetrically.

6. A vehicle smart security lock with biometric identification and security detection functions according to claim 4, characterized in that: A drive bevel gear B (41) is fixedly connected to the output shaft of the drive motor (4), and a transmission bevel gear B (227) is fixedly connected to the transmission shaft (224). The transmission bevel gear B (227) and the drive bevel gear B (41) are engaged.

7. A vehicle smart security lock with biometric identification and security detection functions according to claim 4, characterized in that: The outer side of the assembly part (12) is provided with a telescopic through hole (128) that communicates with the assembly cavity (121). The lock body (31) is assembled into the telescopic through hole (128) in a relatively sliding manner. The lock cylinder (32) has a spline shaft (321) at its axis. A spur gear A (322) is slidably inserted into the spline shaft (321) and rotatably installed in the assembly cavity (121). A spur gear B (228) that meshes with the spur gear A (322) is fixedly connected to the transmission shaft (224).

8. A vehicle smart security lock with biometric identification and security detection functions according to claim 7, characterized in that: The latch (21) is provided with a radial guide groove (215) and an axial guide groove (216). Two sets of symmetrically arranged hooks (51) are slidably installed in the radial guide groove (215). The two sets of hooks (51) are connected by a tension spring (511). The outer side of the hook (51) is provided with an outer wedge surface (512) that cooperates with the hook groove (132). The inner side of the hook (51) is provided with an inner wedge surface (513). The linkage assembly includes a drive rod (521), a drive key (522), a connecting plate (523), and an actuating plate (524). The drive rod (521) is slidably installed in the axial guide groove (216). A support spring (525) that abuts against the axial guide groove (216) is fitted on the inner end of the drive rod (521). The drive key (522) is fixed to the outer end of the drive rod (521), and a wedge surface (513) is provided on the side wall of the drive key (522). The drive wedge surface (526) that abuts against the drive rod (521) arranged in the two sets of lock tongues (21) is fixedly connected by a connecting plate (523). A permanent magnet (527) is fixedly connected to the connecting plate (523). The electromagnet (53) is fixedly installed in the assembly cavity (121) and is arranged coaxially with the permanent magnet (527). The action plate (524) is also fixedly connected to one of the drive rods (521). The action plate (524) is associated with the lock body (31).

9. A vehicle smart security lock with biometric identification and security detection functions according to claim 8, characterized in that: The mechanical drive assembly also includes a guide rod (33), a return spring (34), and a connecting seat (35). The guide rod (33) is fixedly installed in the assembly cavity (121). The connecting seat (35) is slidably installed on the guide rod (33) and fixedly connected to the lock body (31). The return spring (34) is assembled on the guide rod (33) and connected to the connecting seat (35). An action buckle (36) arranged above the action plate (524) is fixedly connected to the connecting seat (35). An action groove (528) that cooperates with the action buckle (36) is opened on the connecting plate (523).

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